This study investigated the effects of FDM (Fused Deposition Modeling) process parameters on mechanical properties (tensile strength, elongation, and impact strength) of 3D (three-dimensional) printed PA12 (Polyamide12) samples using Taguchi method. In the experimental design (L₈), four different layer thickness (0.1, 0.15, 0.2, 0.25 mm), extruder temperature (250 and 260°C), filling structure (Rectilinear and Full Honeycomb), and occupancy rate (25 and 50%) were determined. The tensile and impact strength test samples were printed with the FDM method. Tensile and impact strength of the test samples were carried out according to ISO 527 and ISO 180 test standards. The findings obtained from tests were analyzed and compared. As a result, the layer thickness is most effective factor for enhance the mechanical properties instead extruder temperature, occupancy rate, and filling structure. The optimum tensile strength of determined for process parameters (layer thickness, occupancy rates, filling structures and extruder temperature) were 0.25 mm, 50%, Rectilinear, and 250°C, respectively. The optimum impact strength of determined for process parameters (layer thickness, occupancy rates, extruder temperature, and filling structures) were 0.25 mm, 50%, 250°C, and Rectilinear, respectively. PA12 filament material can be used to printing for sleeve bearing due to their mechanical properties. It can be used in the production of many machine parts and components due to its tensile strength, impact strength resistance and damping properties.

这项研究使用Taguchi方法研究了FDM（熔融沉积建模）工艺参数对3D（三维）印刷的PA12（聚酰胺12）样品的机械性能（拉伸强度，伸长率和冲击强度）的影响。在实验设计中（L ₈），确定了四个不同的层厚度（0.1、0.15、0.2、0.25毫米），挤出机温度（250和260°C），填充结构（直线和全蜂窝）以及占用率（25％和50％）。拉伸强度和冲击强度测试样品采用FDM方法印刷。根据ISO 527和ISO 180测试标准进行测试样品的拉伸强度和冲击强度。从测试中获得的结果进行了分析和比较。结果，层厚度是提高机械性能的最有效因素，而不是挤出机温度，占有率和填充结构。确定的工艺参数（层厚度，占用率，填充结构和挤出机温度）的最佳抗拉强度分别为0.25 mm，50％，直线和250°C。确定的工艺参数（层厚度，占用率，挤出机温度和填充结构）的最佳冲击强度分别为0.25 mm，50％，250°C和Rectilinear。PA12长丝材料由于其机械性能而可用于印刷套筒轴承。由于其抗拉强度，抗冲击强度和阻尼特性，它可用于许多机械零件的生产。